"world news tonight" with david muir up next. time magazine called chris van hollen "a hero to environmentalists, education groups, and gun control advocates" for his accomplishments as a young legislator. now a respected leader in congress and key ally of president obama, protecting planned parenthood and social security... chris van hollen is the only candidate who fought the wall street banks and the nra...and won. that's why he's endorsed by the post as the "talented successor" to senator mikulski who will "deliver results." i'm chris van hollen, and i approve this message.